Tania Castaneda
Tania Castaneda is a Peer Specialist in Chula Vista, CA, registered under NPI 1003389743. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Chula Vista, based on OpenStreetMap data collected Sep 23, 2026. Parking is available about 248 ft away. The nearest transit stop is 0.25 mi away. A pharmacy sits 0.45 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.38 mi away.
Getting here and what is nearby
Transit 76 ft ~1 min
Parking 219 ft ~1 min
Parking 227 ft ~1 min
Parking 248 ft ~1 min
Restaurant Burger King 1,007 ft ~4 min
1265 Third Avenue, Chula Vista 91911-3237
Mo-Fr 06:30-20:00; Sa 07:00-20:00; Su 07:30-20:00
Restaurant McDonald's 0.22 mi ~5 min
Transit 0.24 mi ~5 min
Gas station Top Fuel 0.24 mi ~5 min
1295 3rd Avenue, Chula Vista 91911
Transit 0.25 mi ~6 min
Restaurant Castañeda's Mexican Food 0.26 mi ~6 min
1090 3rd Avenue, Chula Vista 91911
Grocery Northgate Market 0.32 mi ~7 min
1058 3rd Avenue, Chula Vista 91911
Mo-Su 07:00-22:00
Gas station El Gallo Petrol 0.36 mi ~8 min
Coffee Starbucks 0.38 mi ~8 min
1049 3rd Avenue, Chula Vista 91911
Grocery Grocery Outlet 0.38 mi ~8 min
Mo-Su 07:00-22:00
Pharmacy CVS Pharmacy 0.45 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| F5592817 | CA | Peer Specialist primary |
This provider holds licence F5592817 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Peer Specialist covers
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority. NUCC Health Care Provider Taxonomy, code 175T00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003389743 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 4, 2019 |
| Last updated | Jan 18, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1196 THIRD AVE FL 1 Chula Vista, CA 91911 (619) 745-3596 |
| Mailing address |
1196 THIRD AVE Chula Vista, CA 91911 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 3 | 8 | 9 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 8 | 9 | 7 | 8 |
Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.